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Thread: Tire clearance issue need some input

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    VCVC Member No1rascal's Avatar
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    Tire clearance issue need some input

    The 68 I recently bought has an issue with the F70x15 tires hitting the front fenders as well as rubbing on the sway bar (or shock, forget which one atm). I plan on putting new tires on it going down a size, but in looking at it closer it appears the axle may not be straight.

    If u look at the pics notice the gap on the (front of the tire) right side is smaller than the left. My question is can I loosen the ubolts and simply reposition the axle on the passengers side back a little? BTW both sides r rubbing.

    Any info or suggestions would be appreciated.

    Thanks
    Scott
    Attached Thumbnails Attached Thumbnails DSCN5317.jpg   DSCN5315.jpg   DSCN5316.jpg   DSCN5320.jpg   DSCN5318.jpg  

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    Last edited by No1rascal; 05-30-2019 at 11:01 AM.
    1966 GMC Handi-Bus Custom (project)
    1968 Chevy 90 panel
    1968 Chevy 108 Sportvan

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    VCVC Member panelmanrd's Avatar
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    almost looks like some one has installed the wrong springs
    or the centering pin has sheared and the axle has moved forward
    i just looked at my 60/90 and the front axle looks like it is about
    1 inch forward of the center of the wheel opening so if you had tire
    that filled the well enough the front would touch before the rear
    54 chevy panel truck 355 tpi 700r4 325/9in
    64 chevy 90 5.7 tpi 700r4 336 8.2
    69 chevy panel van 5.7 tbi 700r4 336 8.2

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    VCVC Member No1rascal's Avatar
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    thanks 4 the info. Just curious about how the centering pin works. In 2nd gens IIRC they have the angle shims between the axle & spring. Do the shims have centering pins/holes?
    1966 GMC Handi-Bus Custom (project)
    1968 Chevy 90 panel
    1968 Chevy 108 Sportvan

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    VCVC Member jrinaman's Avatar
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    mine is like that too, I think they all are. the offset on your wheels makes it worse. 225 70 14 on my e.t.'s rubbed before modifying the fender lip. the axle wedge has a hole and the pin goes threw the wedge and into the axle. I considered replacing main leaf with the hole drilled 1/2" back, welding and redrilling axle and even considered moving the spring mounts back but in the end, decided it was good enough for 50+ years as it was so went with moving the lip of wheel well instead. keep in mind moving the axle "should" have a longer drag link to match.
    '64 chevy, 292 40 over, 206/526 cam, 2004r trans. 9.75:1, dual webbers, Langdon cast headers, 1.94 valves

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    VCVC Member joyrde's Avatar
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    just an fyi - - - the original tires were on 14' rims, were about 26" in diameter, and sat inside the wheel lips

    F70X15 are between 28"-29" in diameter plus the wheel offset and possible weak springs

    I am running 225-70X14's on the front with standard offset. The tires are 26.3" in diameter. The springs have no sag

    for comparison
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    Last edited by joyrde; 05-30-2019 at 08:27 PM.

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    VCVC Member BILLS66's Avatar
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    That wheel is sitting to far forward something is not right . Bill
    1966 Chevy G10 Panel, 283 small block/turbo 350,Disc brakes

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    VCVC Member No1rascal's Avatar
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    thanks guys, guess I will have to pull things apart 2 c just what is going on.
    King pins may need rebuilding so might just do it all at once.
    1966 GMC Handi-Bus Custom (project)
    1968 Chevy 90 panel
    1968 Chevy 108 Sportvan

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    VCVC Member jrinaman's Avatar
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    Quote Originally Posted by No1rascal View Post
    thanks guys, guess I will have to pull things apart 2 c just what is going on.
    King pins may need rebuilding so might just do it all at once.
    if you have it apart, make sure you have the washer at the bottom of spring. this lengthens the spring pin enough to go threw angle shim and still have enough to catch the axle.
    '64 chevy, 292 40 over, 206/526 cam, 2004r trans. 9.75:1, dual webbers, Langdon cast headers, 1.94 valves

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    Bent Spring?

    I have the same thing on the WedgieVan. The driver's side front tire is close to the body. It even rubs just the smallest amount on hard parking lot turns. There is evidence of a hard hit on the passenger side at the spring perch. Vanner68 spotted it for me in Missouri. (Thanks Gregg). I have no unusual tire wear because of this issue. If your springs had moved off the centering pin, there may be some evidence of movement (scrapes) on the leaf spring. You can also measure distance from axle to spring end on each leaf to see is there's a difference. Might be worth condisering before taking things apart.
    108VanGuy...
    1969 Chevy Panel, 250 CID, 3 Spd.with OD, 3.36 "WedgieVan" Daily Driver
    1967 Chevy Panel, 230 CID, 3 Spd. 3.36 "UtiliVan" 292 TFI coming. Owned since 76
    1964 GMC Panel, 194 CID, 3 Spd. "CrunchoVan"
    1965 GMC HandiBus Custom, 194 CID, 3 Spd. "MilkVan" Seized Engine
    1965 Chevy Panel 350 CID, 3 Spd. "RustoRoof" Runs but wiring bad
    1969 Chevy 108 Display 307 CID THM 350 Power Brakes 3.73 Posi
    1965 Chevy Panel, V8, 3 Spd. "Gold Hills Van" Best body of my 65s
    1965 CamperVan, V8, 3 Spd.

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    Administrator smiley's Avatar
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    Iím fairly certain that all our vans are that way. Mine is like that and Iíve fielded dozens of questions over the years about this. Itís not until you move to a 15Ē wheel with a tall enough tire profile that you notice, or have to deal with, it.

    On mine, we cut a small wedge out of the lower corner and massaged the edge til the tire cleared.

    Why it only happens on the driverís side is an engineering mystery.
    1966 Chevy Display, "Southern Belle"
    1968 Chevy, "Blue Overdose"

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